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<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=453521
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<head>
  <title>Test for Bug 453521</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=453521">Mozilla Bug 453521</a>
<p id="display"></p>
<div id="content" style="display: none">
  
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<pre id="test">
<script class="testbody" type="text/javascript">

/** Test for Bug 453521 **/


var r = document.createRange();
r.setStart(document.documentElement, 0);
r.setEnd(document.documentElement, 0);
ok(r.extractContents() != null,
   "range.extractContents() shouldn't return null.");
is(r.extractContents().nodeType, Node.DOCUMENT_FRAGMENT_NODE,
   "range.extractContents() should return a document fragment.");


</script>
</pre>
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